Closure for thief holes for tanks and other receptacles



May 29, 1928.

C. EHRET CLOSURE FOR THIEF HOLES FOR TANKS AND OTHER RECEPTACLES Filed Aug. 1926 R m m M w. 3 #0 l 1 FIG. 2.

FIG. 3.

A TTORNEYS.

FIG. 4.

Patented May as, was.

- isms? UNIT-Em stares PAR T @FHCIEQ,

CONRAD EHRET, or LAHOMA'CIT OKLAHOMA.

CLOSUREFOR THIEF nonns ceon TANKS AND OTHER 'RECEIPTACIJES."

Application filed August 7, 41926. J'Seria11 1'o. 12 7,786.

My invention relates to improvements in closures for thief holes for tanks and other receptacles.

The object of my invention isto produce .a.=device :of the character described, which will he new, novel and of practical utility hole, andyet so that the same will not become adhered-to the rim or other parts and .be-drawn 'thereby out of its holding; which will the-efficientinnot requiring the use of bolts, nuts, taps, wrenches, or other appliances in fastening or unfastening the same; which will be efficient in saving or preventing the escape of gas, or llQUiCLCZHli-Stltl by rusting, decaying, or the wearing out of the parts of metal .around the hole, or the bolts,

or the =like; and which will be more etiicient inopening and closing at all times.

The invention, new and novel features, andother objects and advantages will be set forth .in the ensuing description, speciiication, claim andaccornpanying one sheet drawing,of which,

Figure 1 is a plan View of thethief hole cover; Fig. is a side View showing the ,position .of the open in dottedin portions; Fig. 8 is a perspective View of an arm of the lid showing an outstanding lug; Fig. 4 is a perspective view of the receiver for the arm a recess for receiving the outstandinglug of said arm; Fig. 5 is a sectionview of a portion of the lid showingthe means of holding gasket in place and the shape of the rubber.

Like characters of reference designate like parts in all the figures.

The :manner of accomplishing poses for which my invention is intended is as follows:

The device consists of a hole cut in a tank or other receptacle, an upwardly extending rim 1, 2, thereover, securely bolted through holes 52 in a flared shoulder 3 therein, which are fastened by holding means (not shown) to the tank or other receptacle. Attached to shoulder 3 and rim 1, 2, are two outwardly and upwardly extending members or lugs 22 each partially perforated therethrough,

under its top portion .23. said top portions 23 of said lugs 22 and the, rim r2is' a rounded recessed-portion 26 to increase the ,facilitiyof opening said lid 9, from said rim 1, 2. On the outer sur face of the walls of said rim 1.2, are .two C-shaped flat lugs ooppositely each the pur :and eachipa'rtial perforation having. an outwardly and upwardly cut channel 24 therefrom to its outward and upward surface Between each of other and at right angles to said lugs 22.

In the centerslofsaid C-shaped lugs 5 is a hole ..(not' numbered). e-xtending only through said lugs to the outer surfaces of said rim 1, 2,; from said hole isan upwardly'pointing channel or cut between, 6

and 7 pointing towards the upper portion -O;f-SE11Cl lugs 22 and extending only to the outer surface of said rim ,1, The closure 9- 1S cymbal-shaped, having an sunkscrewebolts 28 ,heldj by nuts 29. Said bolts and nutssecurely hold a metallic ring 27 to said shoulder 10. Said shoulder has straight "line 30between 33and 3 1 anddown- 'wa-rdly therefrom to 35, horizontally and parallel with saidefirst described line-to 36 then straight downwardly to 37. A solid .rubber r1ng38, its lower-surface 39"adapted to be seated on the upper edge tof rim 1, 2, is of thesame shape as the inner cut-out portion of said shoulder 10. .Its lower surouter raisedcenter 9 and an. inner thim- .bleshaped central depression therein. also has a flatouter shoulder 10 atits periphery perforated so as toreceive counterits outer and under periphery cut outon a angle of approximately 60 between 31 and v 32 adapted to fit an oppositely taperingand similarly angled inner surfaceyee of said metallic r1ng27. Th1s ring 38 may also be made ofother suitable mater ial, besides rubber. The upper surface on line 30 and the outer surface 42 and the lower surface 48 of said ring 27 are atright' angles with each other; its inner surface-4 l is tapered at an' angle of approximately 60 between 32 and 41. Said metallic ring 27 is perforated (not numbered) in line f with the perforations in shoulder 10 to admit countersunk screw-bolts 28 fastened by nuts 29. This presses inner edge 44;

' 50; bail 46, 47 can then be laiddown over the lid or top oppositely tosaid foot-hold 13; the foot-hold 13 on the outer end of arm 12. can be-pressed downwardly raising the lid or top 9 upwardly and outwardly until it assumes the position shown by the dottedin portions and untilouter edge 14 and lower end 15 rest in the position shown in said dotted-in portion and said 15 rests partially againstthe rim 2. If it is desired to remove the lid 9 from its partial perforations in lugs 22 this may be done by raising the lid 9 having arms 17,20, until lugs 18,

21 having faces '19 on lugs 18 opposite face 16 of opening 24 in partial perforations 25, said lug 18 can then be withdrawn through groove24 and the lid 9 with its various parts removed from its regular seat. The replacing is by an opposite process to that justdescribed. After the removal of the lid 9 as described if it is then desired to remove the bail, member 46, 47, this may be done in a similar manner to that just described for removing the lid 9, by changing the position of said bail member from the position in which it has been described to the side where said lugs 22'are located, until the straight D shaped sidc 8 is in line with surface 7 of the groove'between 6 and 7', at which time the ID-shaped end of said bail i'i'iembern'iay be removed from the C-shaped lug and the bail removed. Said shoulder 10 has an outstanding lug 53 to limit the bail member 46, 47, in its movement.

The parts described in the above spec-ification and illustrated by the drawing which are covered by patent issued this applicant under date of April 27, 1926, and numbered 1,582,209, under the claims therein allowed, are not claimed. as new herein such other parts of this application and drawing as are not covered by the said issued patent and the claims thereof are claimed herein. The parts which are particularly claimed and application of the invention will'be' apparent to those skilled in the art to which 'I my invention pertains. I have entered into a. detailed description of the construction and relative arrangement of parts embraced in the present and preferred embodiment of my invention in order to impart a full, clear and exact understanding of the said embodiment. I do not desire, however, to be understood as confining myself-to the specific construction and relative arrangement of the parts, inasmuch as in the future practice ofv the invention various changes and modifications may be made as fall within the scope of my invention as defined in my appended claim. Y

Having thus described the invention, what is claimed and desired to be secured by Lettors Patent, is i In a device of the character described, a

crown cap for a thief hole, as described, having on its periphery a flared shoulder with a plurality of perforations 'there through, said shoulder having its under outer portion cut away so as to leave a'groove in the upper inner part of said undercutaway portion, said cut-away portion being adapted to receive a rubber gasket; a rubber ring gasket member havinga tongue on its upper inner side and an inwardly anddown- \vardly beveled side surface; said groove in said cut-away portion being adapted to receive said tongue of said rubber gasket; a metallic outer ring member being adapted to lit over the outer surface of said flared shoulder and being adapted to be securely fastened thereto, having its inside'surface beveled oppositely to said beveled surface of said gasket member, and being adapted to securely hold with holding means said gasket member and crown cap tightly together.

CONRAD EHRET. 

